National Take a Hike Day is observed annually on November 17. Phoenix is home to more than 41,000 acres of desert parks and mountain preserves and more than 200 miles of trails.Hiking has tons of benefits and is a great way to start to your holiday season. Whether you bring a buddy or take a solo adventure, get out there and enjoy the fresh air, cooler weather, scenery, and exercise. Be sure to dress appropriately, and bring water, sunscreen, and snacks!​